Downton Abbey star opens up about her OCDTo play this video you need to enable JavaScript in your browser.This video can not be playedDownton Abbey star opens up about her OCDCloseWatch the full film on The One Show on BBC iPlayer.SectionNewsPublished11 MarchShareclose panelShare pageCopy linkAbout sharingRelated topicsObsessive-compulsive disorderFollow Obsessive-compulsive disorderclose panelYou are now following Obsessive-compulsive disorderUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description